Method of operating a piston expander of a steam engine
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United States of America Patent
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May 26, 2015
Grant Date -
Aug 11, 2011
app pub date -
Feb 3, 2011
filing date -
Feb 5, 2010
priority date (Note) -
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Abstract
A method of operating a piston expander, including introducing live steam into a cylinder space via an inlet valve; expanding the live steam during a power stroke in which a piston moves from an upper dead center position to a lower dead center position; opening an outlet opening as soon as the piston is in the region of the lower dead center position; after the piston reaches the lower dead center position, conveying the expanded steam out of the outlet opening and into a steam discharge; and subsequently closing the outlet opening before the piston in an exhaust stroke reaches the lower dead center position.
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